Forward ... over a cliff, ha, ha!
                                
                                
                                    (Newser) -
                                    President Obama  got his Mitt Romney zinger in  on Saturday night, and the GOP candidate returned the favor last night, reports  ABC News . At a $2,500-and-up-a-head fundraiser at a Ritz-Carlton just outside DC, Romney tweaked Obama's new slogan,  "Forward,"  saying "it's like, forward, what,...